OCS-3R100Ultrasonic Oxygen Sensor
Ventilator / HFNC High Flow Therapy
Advanced ultrasonic oxygen sensor for ventilator and HFNC respiratory therapy. High precision with robust anti-interference performance.
Product Introduction
The OCS-3R100 Ultrasonic Oxygen Sensor is a new type of gas sensor. It can be used to measure the concentration of the gas mixed by Air and Pure Oxygen or PSA Oxygen. It uses UART digital output. Mostly used for transnasal high flow oxygen therapy (HFNC). It features high accuracy, strong anti-interference ability, quick response, long-term stability, and built-in atmospheric pressure and ambient humidity compensation.
Features
- High accuracy — reliable oxygen concentration readings
- Strong anti-interference ability — stable in complex environments
- Quick response — fast detection result output
- Long-term stability — consistent measurements over time
- Without calibration — no user calibration needed
- Built-in compensation — atmospheric pressure and ambient humidity compensation
Applications
Precautions for Use
- Ensure that the detected gas is dry (no condensation) and dust-free.
- Customers must use 3.3V/5V TTL level; RS232 level requires conversion.
- Do not connect sensor pins directly to RS485/RS232.
- This sensor and data manual may be changed due to product technical improvements without prior notice.
- The company has the final interpretation right for the sensor data manual.
Technical Specifications
| O₂ Concentration Range | 0% – 99.9% |
|---|---|
| Concentration Resolution | 0.1% |
| Concentration Accuracy | ±1.5%FS @5–55°C |
| Sample Gas Requirements | Dry (no condensation); Dust filter (<1μm) |
| Data Send Cycle | 500ms |
| Warm-up Time | Works as soon as power on |
| Communication Protocol | 9600bps UART, compatible 3.3V TTL level |
| Gas Flow Direction | Any side is acceptable |
| Working Temperature | 10°C – 50°C |
| Storage Temperature | -5°C – 65°C |
| Working Humidity | 5% – 95%RH |
| Maximum Pressure | 150 kPa |
| Power Supply | 5–12V DC, 50mA |
| Dimensions | 63mm × 26mm × 30mm (L × W × H) |
| Weight | 20g |
Connectors
Connector Overview
| Connector | Name / Function | Description |
|---|---|---|
| J2 | Socket (4P × 2.0mm) | Digital signal output connector for UART communication and power |
Table 1: Socket J2
| Pin | Function |
|---|---|
| Pin 1 | V+ (Power input) |
| Pin 2 | RXD (UART Receive) |
| Pin 3 | TXD (UART Transmit) |
| Pin 4 | GND (Ground) |
Dimensions
63mm × 26mm × 30mm (L × W × H). Unit: mm, tolerance ±0.2mm.
Packaging
Inner Box
- Dimensions: 42 × 30 × 24 cm
- Capacity: 30PCS/layer × 5 layers = 150PCS
Shipping Carton
- Dimensions: 50 × 32 × 44 cm
- Contains: 2 inner boxes (150 × 2 = 300PCS)
- Net weight: 5KG
- Gross weight: 7.2KG
UART Communication Protocol
The UART communication protocol and integration guide for OCS-3R100 is available upon request. Please contact our engineering team for the complete technical documentation.
For inquiries: Request Quote | Technical Support
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